Antenna



FIG. 1 is a top plan view of an antenna, showing our new design; and,

FIG. 2 is a perspective view thereof.

The bottom of the antenna is unornamented and has no bearing on novelty of design.

The design for the antenna is so thin that it is barely discernable in front, rear, and side views.

The broken lines depict portions of the article that form no part of the claim. 

CLAIM The ornamental design for an antenna, as shown and described. 